body{
  background: #eeeeee;
}
.item{
  background: yellow;
  margin-bottom: 10px;
  height: 30px;
  line-height: 30px;
  text-indent: 30px;
}
.slider{
  position: fixed;
  right: 50px;
  bottom: 100px;
  .go-back{
    display: inline-block;
    width: 60px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    font-size: 12px;
    color: #666666;
    background: #ffffff;
    border: 1px solid #cccccc;
  }
}